Small Reduction Stepper Motor - 5VDC 32-Step 1/16 Gearing : ID 858 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Buy Cheap 34LS31-3124C-150N Nema 34 Stepper Motor Non-captive 79mm Stack 3.12A Lead 6.35mm/0.25" Length 150mm Online with Wholesale Price - Oyostepper.com
Low-cost tin-can stepper motors from Nippon Pulse feature high torque and compact size
Amazon.com: Kingroon Nema17 Stepper Motor Bipolar 42 Motor 4-Lead Wire with 1m Cable 23MM 42BYGH 1.5A Motor for CNC XYZ 3D Printer (17NE1026, 2) : Industrial & Scientific
Stepper Motor with ULN2003A Driver Board - ProtoSupplies